Smitty isnít superstitious, but whenever she finds a coin in the street, she makes a wish and tosses it into a fountain. Last week, she hit the sidewalk jackpot. On each of six days (Monday through Saturday), she found a U.S. coin of a different denomination (penny, $0.01; nickel, $0.05; dime,...

Thereare101 engines and 94 lawn mowers. There are 19 engines and 3 lawn mowers defective. 40 are properly constructed but 42 were not. Of the lawn mowers that are not defective 50 were properly constructed 41 were not.